baber/WOPTO huggingface dataset:
Patent GB-143289-A (GB)
Title: Method and means for atomizing more or less viscid materials
IPC: B05B3/02
Filed: 1919-02-11
Abstract: 143,289. Sonsthagen, A., and Harberd, E. H. Feb. 11, 1919. Rotary apparatus.-Relates to apparatus for spraying more or less viscous material, of the kind in which the material to be sprayed is spread in a thin layer upon rollers and transferred therefrom by means of a rapidly-moving body provided with points, teeth, or surfaces, from which the material is projected by centrifugal force. The apparatus is stated to be applicable for ornamenting sweetmeats, chocolate-refining machines, &c. The material to be sprayed, e.g. sugar and honey, is contained in two hoppers b, c<1>, Fig. 3, within which rotate drums c, d on which the film is formed by means of scrapers. The film is removed first from one roller d, and projected on the roller c, from which it is projected in the form of spray by means of a rotary drum, band, brush, &c. e provided with points, teeth, or knife-edges and rotating at a speed greater than that of the drums c, d, the drums being so adjusted that the points &c. contact with the film, but not with the drums. The material may be sprayed by means of a brush, in which case the bristles may be restrained by a stop f, Fig. 4, immediately before contact with the film. Fig. 3 shows the apparatus applied for spraying material on to the rollers x of a chocolate-refining machine. Instead of a brush, the body may comprise a number of surfaces on spiral lines, or a number of sharply pointed teeth; or it must be built up of thin toothed disks, or may be provided with, or built up of, a number of knife-edges.
Patent GB-1426558-A (GB)
Title: Razor blades
IPC: B26B21/54
Filed: 1973-01-23
Abstract: 1426558 Razor blade units WARNER-LAMBERT CO 22 Jan 1974 [23 Jan 1973] 3365/73 Heading B4B A shaving unit 10 comprises a first elongated razor blade 13 connected to one side of an elongated member 12 which is provided with spaced projections 17, 18 each having a raised portion 1, 2, a second razor blade 11 connected to the other side of the spacer with its cutting edge 14 positioned rearwardly of the cutting edge 15 of the first blade and with the ends of its cutting edge located behind a respective one of the raised portions. The spacer is formed with teeth 16 which co-operate with slots 20 formed in the blade 13 to provide a shaving residue flow path. The blades and spacer are connected together by spot-welding. In a modification Fig. 12 (not shown) the teeth and slots 20 are dispensed with. In the modification shown in Fig. 6, the blades and spacer are located in their correct positions prior to spot welding by means of projections 31, 32, 34, 35 formed on the spacer and adapted to engage in the ends of slots 30, 33 in the blade 11; alternatively the projections may be located in bevelled holes 40, 41, Fig. 7, provided in the blades. In a further embodiment, the spacer may be formed from plastics material provided with bosses 51, 52, Fig. 8, adapted to be inserted into bevelled holes 53, 54 formed in the blades; the bosses are then staked by heat and pressure. The blades may be of stainless steel and the spacer of stainless steel or plastics material.
Patent GB-662779-A (GB)
Title: Improvements in or relating to vehicle servomotor brake mechanism
IPC: B60T13/58
Filed: 1949-02-08
Abstract: 662,779. Vacuum brakes. JOHNSON, M. E. Feb. 3, 1950 [Feb. 8, 1949], No. 3394/49. Class 103 (i). In a vacuum brake system the control valve, actuated by hydraulic or mechanical connections from the brake pedal or like manually-operated member against the action of a spring tending to return the valve to normal position, is attached to or engaged by a diaphragm exposed on one face to the vacuum induced by movement of the valve from normal position, the diaphragm being arranged to assist the return spring in proportion to the degree of vacuum in the brake pipe or cylinder, and the spring being adjustable to a desired strength. As shown, the control valve g is provided with a, rubber seating washer h as described in Specifications 542,453 and 567,687, [Group XXIX], and controls communication between ports b, c, and d in communication with the atmosphere, vacuum cylinder and vacuum source respectively. The valve is actuated by a hydraulic piston l and is subjected to the action of a return spring q, the force exerted by which is adjustable by a screwed sleeve s, and in addition is connected to a diaphragm n in a casing m, the upper side of the diaphragm communicating with the atmosphere through a hole m<SP>1</SP> in the casing, while the underside communicates with the vacuum cylinder port c through a pipe u, Fig. 2 (not shown). In the inoperative position shown, communication is established between the ports band c, and upon actuation of the brake pedal the initial upward movement of the valve causes a lip h<SP>1</SP> on the washer h to shut off the atmospheric port b. Further valve movement unseats the washer h to establish communication between the vacuum source d and the cylinder port c, and also with the underside of the diaphragm n. With a given hydraulic pressure the brake pressure may be adjusted to suit the running conditions of the vehicle, e.g. whether a trailer is attached or not, by adjustment of the cap s to vary the compression of the spring q.
Patent GB-489185-A (GB)
Title: Improvements in and relating to colour photography
IPC: G03C5/26
Filed: 1937-02-05
Abstract: 489,185. Colour photography. KODAK, Ltd. Feb. 5, 1937, No. 3449. Convention date, April 3, 1936. [Class 98 (ii)] An exposed highly sensitive photographic element, especially a film, having several differentially colour sensitized emulsions is developed to silver and dried, positive images being subsequently produced by the reversal process. The unexposed areas may be subsequently re-sensitized and subjected to controlled re-exposure, particularly when using lenticular film. Positive coloured images may be produced by differential treatment in controlled steps of the reversed silver halide images remaining after developing all the latent images to silver and drying the film. Specifications 176,357, [Class 98 (ii)], 440,032, and 440,089 are referred to. The Specification as open to inspection under Sect. 91 comprises also the reduction of the light sensitivity of the latent images by washing out the light sensitizers with water, dilute acid such as hydrochloric acid or dilute alkali or by treatment with a solution of a desensitizer. The developed element may be processed to a negative and the development may or may not be followed by fixing. This subject-matter does not appear in the Specification as accepted.
Patent GB-1021716-A (GB)
Title: Improvements in or relating to cutting tools
IPC: B23B27/16
Filed: 1965-01-27
Abstract: 1,021,716. Cutting tools. VALERON CORPORATION. Jan. 27, 1965 [Feb. 26, 1964], No. 3486/65. Headings B3B and B3C. A boring bar or lathe tool comprises a body 11, Figs. 1 and 3 (not shown); a head 10, and a tip 12 is held in the head by a pin 17 which fits into a hole 16 in the tip, and a hole 18 in the head. The tip is clamped in the head by a clevis 19 actuated by a screw 20. In a modification, the clevis 19a, Fig. 5 (not shown), is actuated by a screw 21. In a further modification pin 17a, Fig. 6 (not shown), has an enlarged portion 24 which prevents the pin from falling out of the head when the tip is being indexed.
Patent GB-410443-A (GB)
Title: Improvements in and relating to impellers
IPC: F04D29/22
Filed: 1934-02-03
Abstract: 410,443. Centrifugal pumps. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Woods, W. J. ; 602, Union Street, Schenectady, New York, U.S.A.) Feb. 3, 1934, No. 3608. Convention date, Feb. 7, 1933. [Class 110 (i).] A die-cast impeller comprises a blade disc 11 and shrouds 17, 18. Blades are formed between those carried by the disc 11 by members 23, 27 which are formed integral with the shrouds. The members 23, 27 are held in alignment by slots 40. The disc blades engage slots 30 in the shrouds. Specification 385,042, [Group XXIX], is referred to.
Patent GB-703704-A (GB)
Title: Improved apparatus for chemical reactions under high pressures
Inventor: STACEY MAURICE
IPC: B01J3/04
Filed: 1951-02-14
Abstract: <PICT:0703704/III/1> Apparatus for carrying out chemical reactions at high temperature and pressure with small quantities of material such as are used in organic analysis comprises a hollow metal body 1 designed to withstand high pressure into which fits a closing member 2, means for forming a gas-tight seal between the closing member and the body, and a robust clamping member 5 adapted to be secured to the body and to clamp the closing member and body together to form a gas-tight sealed joint, the closing member being provided with an axial extension 10 which protrudes through a central hole in the clamping member and with a transverse bore 11 in the axial extension to receive a removable bar for use when required in breaking the sealed joint.  In the preferred form of apparatus shown, the closing member which, with the body, is made of nickel, carries a flange 3 upon which the steel clamping member bears, thereby compressing a soft copper washer 4 to form a gas-tight seal.  The apparatus is constructed so as to be readily assembled and opened by means of box spanners.  In the analysis of fluorine in an organic compound a suitable quantity of the compound is weighed into the bomb together with an excess of sodium or potassium.  The clamping member is screwed down and the assembled bomb heated, e.g. at 600 DEG  C. for one hour.  After cooling, a bar is inserted into the bore in the closing member and the clamping member unscrewed whereby the bomb is forced open.  The contents are washed out and fluoride ion determined, e.g. by precipitation as lead chlorofluoride or thorium tetrafluoride.
Patent GB-987254-A (GB)
Title: New insecticidal compounds
Inventor: FRASER JAMES
IPC: A01N47/22
Filed: 1963-01-29
Abstract: The invention comprises 3,5-di-tert.-butylphenyl N-methylcarbamate, which may be prepared (1) by reaction of methylamine with a 3,5-di-tert.-butyl-phenyl haloformate, which may be prepared in situ from the phenol and phosgene, (2) by reaction of 3,5-di-tert-butylphenol with methyl isocyanate, (3) by reaction of methylamine with a 3,5-di-tert.-butyl-phenyl carbonic acid ester, (4) by reaction of 3,5-di-tert.-butylphenol with an N-methylcarbamoyl halide, (5) by reaction of 3,5-di-tert.-butyl phenol with another ester of N-methylcarbamic acid, or (6) by methylation of 3,5-di-tert.-butyl-phenyl carbamate.  Examples of methods 1,2 and 4 are given.  The product is useful as an insecticide (see Division A5).ALSO:As a component of insecticidal compositions, particularly of sheep dips, use is made of 3,2-ditert.-butylphenyl N-methylcarbamate (see Division C2).  The compound may be formulated in known manner as a dispersible powder or a miscible liquid with the aid of diluents or carriers, a number of which are specified.  Examples and comparative experimental results are given.
Patent GB-126410-A (GB)
Title: Improvements in or relating to the Firing of Explosive Mines and the like.
Inventor: BROWN ALFRED
IPC: F42C19/06
Filed: 1918-03-02
Abstract: 126,410. Brown, A. March 2, 1918. Mines, marine.-Consists in arranging in the mooring cable 46, Fig. 9, of a marine mine 47 one or more electric switches 49 comprising sliding members which close the firing circuit of the mine when encountered by a submarine vessel, the source of electricity being situated in the anchor 50. Another mine 48 may be attached to the same cable below the switches and in the same firing-circuit; and each mine may, in addition, have a separate firing mechanism acting when the mine is struck directly. The mines, switches, and anchor are assembled as shown in Fig. 8, and dropped down an inclined way on rollers 51 carried by the anchor. The anchor falls away from the mines and the mines separate out, disentangling the switches from a frame 53 which then falls away. In the form shown in Fig. 1, the switch comprises an inner insulating tube 3 screwed to a tube 1 inserted in the mooring cable by means of rings 31, and an outer insulating tube 18 within a metal tube 23 provided with radially projecting arms 29. The inner insulating tube carries three contact rings 5, 6, 7, the inner ring 5 connected to one pole of the firing-device 13 of the mine, and the outer rings 6, 7 connected together and to one pole of the source of electricity 9, the other poles of the source of electricity and firing-device being connected together. The outer insulating tube carries two contact rings 21, 24 connected together by the surrounding metal tube 23. The tubes are held in the position shown by springs 28, which yield to the shock of a submarine vessel on the arms 29. The displacement of the insulating tubes relatively to each other, which results from the shock closes the switch and fires the mine. The tubes are locked against premature operation by a cotter pin 32. In modifications, (1) the switch members are connected together by toggle links which close the switch when struck by a ship; (2) one spring only is used to hold the switch members in a central position; and (3) a cardboard disk or struts of paper rolls or of two bits of wood glued together are used to prevent action until the switch has been immersed for a certain time.
Patent GB-1420597-A (GB)
Title: Stainless steel
IPC: B22F9/08
Filed: 1972-01-27
Abstract: 1420597 Making stainless steel BRITISH STEEL CORP 24 Jan 1973 [27 Jan 1972] 3885/72 Headings C7D and C7X Stainless steel is produced by melting together in an L.D. converter, a ferrous metal (e.g. pig iron) and ferrochrome containing carbon, refining the melt by injecting an oxygen-containing blast and then adding ferrosilicon to the slag formed on the melt. The blast may be of oxygen or may be mixed with fuel oil. The product melt may be cast or may be atomized with nitrogen jets prior to quenching into water, which preferably contains a corrosion inhibitor (e.g. tri-ethanolamine). The refining stage may be effected in three stages as in Specification 1209987.
Patent GB-971644-A (GB)
Title: Improvements in or relating to rotary devices
IPC: C30B13/32
Filed: 1961-01-02
Abstract: 971,644. Bearings. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 2, 1961 [Feb. 5, 1960], No. 3988/61. Heading F2A. [Also in Division B1] In the zone-melting of a rod in a sealed container by induction heating, the holder for supporting one or both ends of the rod comprises a rotary shaft having a quartz bearing and a magnetic coupling. As shown in Fig. 2, the upper holder may comprise a shaft 20 attached to an upper bearing shell 27, the lower bearing shell 25 being attached to a guide sleeve 22. As shown in Fig. 3, the lower holder may comprise a shaft 50 having a tapered portion 49 which forms a bearing at the bottom of a tube 48 to which is attached a guide sleeve 53.
Patent GB-1043722-A (GB)
Title: Improvements relating to control circuit arrangements for electrostatic precipitators
Inventor: ETHERIDGE JAMES EDWARD
IPC: B03C3/68
Filed: 1963-01-31
Abstract: 1,043,722. Transistor delay relay circuits. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. Jan. 15, 1964 [Jan. 31, 1963], No. 3990/63. Heading H3T. [Also in Division H2] A control circuit arrangement for an electrostatic precipitator comprises a relay in circuit with a transistor which are arranged to be supplied from the power supply to the precipitator, the transistor being so biased that upon a predetermined drop in the voltage applied thereto due to sparking in the precipitator and after a given period of time, the relay is operated to energize an alarm. The precipitator is supplied from an A.C. source by way of a transductor or a potentiometer (not shown) to which is connected the primary winding P of a transformer T. The rectified output from the secondary winding thereof, stabilized by Zener diodes, ZD1, ZD2, ZD3, is supplied to a circuit including a transistor VT1 and alarm operating relay RLA. When no sparking is present in the precipitator the circuit voltages are at levels at which the transistor VT1 is conductive, thus energizing the relay RLA so that the alarm is inoperative. In the event of sparking occurring in the precipitator, the voltage levels fall such that the transistor VT1 is rendered non-conductive. Relay RLA is maintained, however, for a given period due to the charging of a capacitor C2, the period being dependent upon the time constant of the circuit including the capacitor, the diode D5, the relay coil and a resistor R5. Should the sparking cease, the capacitor will tend to discharge over a circuit having a higher time constant than the charging circuit, the circuit therefore possesses a certain amount of memory. The level at which the alarm operates may be adjusted by means of a variable resistor RV1. The circuit may also be arranged to control the transductor in the precipitator supply circuit so as to reduce the supply voltage when sparking occurs, this control conveniently being by way of silicon-controlled rectifiers.
Patent GB-1070402-A (GB)
Title: Improvements in or relating to pulse generating circuit arrangements
Inventor: GREENFIELD RAYMOND LESLIE
IPC: H04N9/455
Filed: 1964-01-30
Abstract: 1,070,402. Pulse circuits. MARCONI CO. Ltd. Oct. 13, 1964 [Jan. 30, 1964], No. 3990/64. Heading H3T. In a delayed pulse generator the delay time is determined by a monostable circuit comprising a pair of valves or transistors VT1, VT2, the duration of the delayed pulse being controlled by a further monostable circuit utilizing a valve or transistor common to the first monostable circuit and having regenerative feedback via a diode D. As described, a short-duration negative pulse at 1 turns off VT1, turning on VT2 for a period depending on the charging time of C1. At the end of this period, the emitter current of VT2 is transferred to VT3 for a period depending on the charging time of C2 after which all three transistors are restored to their original conductive state; the final transition being expedited by regenerative feedback via diode D. A delayed pulse is thus available at 2 having a duration determined by the charging time of C2.
Patent GB-633269-A (GB)
Title: Sewing machine work-clamping mechanism
IPC: D05B3/08
Filed: 1948-02-11
Abstract: 633,269. Buttonhole sewing-machines. FAIRWEATHER, W. C. (Singer Manufacturing Co.). Feb. 11, 1948, No. 3997. [Class 112] Work-clamps. A pivoted workclamp arm is actuated by mechanism including a pair of toggle members, the arm preferably being yieldingly connected to a lever fulcrummed on the pivot of the arm ; the clamp may be opened and closed by hand or automatically. In the embodiment shown, in a buttonhole sewing-machine, the clamp is formed in two halves, as usual, and each upper half 34 is carried by an arm 32 pivoted at 31 and connected by a rod 38 and spring 40 to a bent lever 36 also pivoted at 31 ; the lever 36 is connected by a link 44 to an arm on a rock-shaft 47, the arm and link forming a toggle connection which locks the lever 36 down when the clamp is closed, the members 34 then being pressed down by the springs 40. The shafts 47 for the two halves of the clamp are connected by a coupling allowing relative longitudinal movement between the shafts ; one of the shafts has fixed to it a lever having a handle 53 and an arm 54 for engagement' by a clamp-closing lever 55 actuated by a cam 57 on a shaft which makes one revolution before the start of stitching, while the other shaft has an arm 59 for engagement by a spring returned push-rod 61 which is actuated through an arm 63, by a cam on a shaft making one revolution after stitching, to break the toggle and allow the clamp to be opened by a spring bearing on the lever 36. Specifications 9458/12 and 146,587, [both in Class 112], are referred to.
Patent GB-305588-A (GB)
IPC: C07C51/10
Filed: 1929-02-06
Abstract: 305,588. I. G. Farbenindustrie Akt.- Ges. Feb. 7, 1928, [Convention date]. Alkali and alkaline earth formates.-Alkali or alkaline earth formates and chromium green are simultaneously formed by reduction with carbon monoxide of a solution or suspension of an alkali or alkaline earth chromate. Preferably temperatures of 150-350‹ C. are used under increased pressure. Specification 304,809 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) refers also to the use of gases containing carbon monoxide. This subject-matter does not appear in the Specification as accepted.
Patent GB-1089051-A (GB)
Title: System of magnetically recording and reproducing images
IPC: H04N5/782
Filed: 1965-01-29
Abstract: 1,089,051. Playing back video signals. TOKYO SHIBAURA ELECTRIC CO. Ltd. Jan. 29, 1965 [Jan. 29, 1964 (2)], No. 4075/65. Heading G5R. [Also in Division H4] In playing back television signals recorded on magnetic tape by the helical wrap method, there being gaps in the recorded signals during vertical blanking periods, these gaps are filled by pulses derived from an auxiliary playback head disposed in advance of the main playback head. In one arrangement, Figs. 5 and 7 (not shown), the gaps occur near the beginning of the vertical blanking periods and head switching is controlled by a detector which detects the position of the shaft carrying the heads. The composite signal is processed to remove the video components of the signal derived from the auxiliary head and to convert this part of the signal into the normal equalizing pulses and vertical synchronizing pulse. In another arrangement, Figs. 6 and 8 (not shown), the gaps occur after the vertical synchronizing pulses and it is not necessary to process the composite signal; the composite signal is demodulated and used to control the head switching.
Patent GB-1299221-A (GB)
Title: Transfer device for rib border knitting machines
IPC: D04B7/04
Filed: 1970-01-28
Abstract: 1299221 Knitting machines FABRIQUE NATIONALE HERSTAL 28 Jan 1970 [17 Feb 1969] 4077/70 Heading D1C A device for transferring a rib border from the needles of one knitting machine bed by a sinking comb 6 to a magazine comb 5 comprises a first pair of levers 21, 22 rotatable with a first axle 23 and supporting a second axle 20 to which a lever 19 is pivoted supporting the sinking comb 6 a first lever 24 connected to levers 21, 22 and actuated by a cam 27 on cam shaft 17 to pivot the levers 21, 22 and a second lever pivoted to axle 23 actuated by a cam 33 on shaft 17 and connected by levers to lever 19 so that rotation of the cam shaft causes axle 23 and sinking comb 6 to be moved so as to deliver the border to the magazine comb 5. As shown, a rib border is taken from the needles 5 of bed 2, when these are raised by bar 7, by sinking comb 6 carried on levers 18, 19. Comb 5, bar 7, a comb 48 for pushing the stitches onto comb 5 are all operated by levers from cams on shaft 17.